| 摘要 |
<p>Isolating particles for preventing channeling in a production section of an oil-gas well, a completion method, and a production method are provided. The isolating particles for preventing channeling are macromolecule polymer particles having an average particle diameter of 0.05-1.0 mm and a real density of 0.8-1.4 g/cm3. The particles are closely filled into the space of oil-gas well which is required to be filled and packed, and bypass channels are eliminated after filling. The isolating particles effectively isolate the oil-gas well into multiple relatively independent regions for production of the oil-gas well, and improve the production efficiency of the oil-gas well. Furthermore, even if bypass channels appear, the low-flow rate fluid channeling with medium will move the isolating particles for preventing channeling towards the direction of bypass channels and make the particles accumulate until the bypass channels are full, thereby achieving the good effect of isolation for preventing channeling and sectional control of flow rate.</p> |
